2 years ago

Which statement compares the numbers correctly?

Mathematics

1 answer:

jeyben [28]2 years ago

4 0

Answer:

The first statement is correct

Step-by-step explanation:

0.654 < 0.674 is correct because 0 is the same, 6 is the same, but 7 is larger than 5.

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Crank

Answer:

0.002

Step-by-step explanation:

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2 years ago

What kind of triangle has three angles of measure 83 degrees, 31 degrees and 66 degrees?

andreyandreev [35.5K]

Hi!

An obtuse angle is one greater than 90 degrees, a right angle one that is 90, and acute less than 90.

An obtuse triangle is one with one obtuse angle, all the rest being acute. A right triangle is one with one right angle, all the rest acute. And finally, an acute triangle is one with three acute angles.

In this case, the angles measure 83 degrees, 31 degrees, and 66 degrees. All of them are acute angles, as they're all less than 90 degrees.

Therefore, the triangle is an acute triangle.

Hope this helped!

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3 years ago

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40% of what number is 18?

vladimir1956 [14]

Answer:

40 percent (calculated percentage %) of what number equals 18? Answer: 45.

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2 years ago

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How can you determine the numbers of miles Ariel swam can you help me plz thanks

OverLord2011 [107]

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ask him how much miles he did

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2 years ago

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Prove that sin20sin40sin60sin80=3/16

never [62]

We'll use the following properties of sine and cosine to prove this:

$sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))$

$cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))$

$cos(180+a) = cos(180-a)$

Then it's just a matter of filling it in...

sin20sin40 * sin60sin80 = 1/2(cos20 - cos60) * 1/2 (cos20 - cos140) =

1/8( cos40 + 1 - cos160 - cos120 - cos40 - cos80 + cos80 + cos200) =

1/8(1 - cos160 - cos120 + cos200) =

1/8(1 - cos160 - cos120 + cos160) =

1/8(1 - cos120 ) = 1/8( 1 + 1/2 ) = 3/16

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3 years ago